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A chain (ch) is a unit of length. It measures 66 feet, or 22 yards, or 100 links, or 4 rods (20.1168 m). There are 10 chains in a furlong, and 80 chains in one statute mile. ..more definition+
In relation to the base unit of [length] => (meters), 1 Petameters (Pm) is equal to 1000000000000000 meters, while 1 Chains (ch) = 20.1168 meters.| 81 Petameters | to common length units |
|---|---|
| 81 Pm | = 81000000000000000 meters (m) |
| 81 Pm | = 81000000000000 kilometers (km) |
| 81 Pm | = 8.1E+18 centimeters (cm) |
| 81 Pm | = 2.6574803149606E+17 feet (ft) |
| 81 Pm | = 3.1889763779528E+18 inches (in) |
| 81 Pm | = 8.8582677165354E+16 yards (yd) |
| 81 Pm | = 50331066571224 miles (mi) |
| 81 Pm | = 8.5614628474791 light years (ly) |
| 81 Pm | = 3.0614177085251E+20 pixels (PX) |
| 81 Pm | = 5.0625E+51 planck length (pl) |